Simulated and Actual Effects of the Brown Shrimp, Penaeus aztecus, Closure in Mexico

Gracia, Adolfo (1997) Simulated and Actual Effects of the Brown Shrimp, Penaeus aztecus, Closure in Mexico. Marine Fisheries Review, 59(2), pp. 18-24.

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Official URL: http://spo.nmfs.noaa.gov/mfr592/mfr5922.pdf

Abstract

Simulations based on a yield-per-recruit model were performed to analyze the impact ofg rowth overfishing on brown shrimp, Penaeus aztecus, and to assess the effects of a closed season inshore and offshore of the Mexican States of Tamaulipas and Veracruz. Closure of both the inshore and offshore fisheries could enhance cohort yield by more than 300%. Cohon yield enhancement would be only about 60-80% if only the offshore season were closed. The closed season of 1993 gave better results as it covered a larger part of the brown shrimp peak recruitment period. Catch per unit of effort (CPUE) after closure in 1993, compared with 1994, was 2.4 times higher than the mean CPUE of the month. Total annual offshore yield increased 72% in 1993 (3,800 metric tons (t)) and 10% in 1994 (506 t) with respect to the mean annual offshore catch during the 10-year period prior to the 1993 closure. Simulation results could help identify alternatives that permit the coexistence of the inshore and offshore fisheries while maintaining high profitability of the brown shrimp fishery.

Item Type: Article
Title: Simulated and Actual Effects of the Brown Shrimp, Penaeus aztecus, Closure in Mexico
Personal Creator/Author:
CreatorsEmail
Gracia, Adolfo
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 59
Number: 2
Page Range: pp. 18-24
Date: 1997
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Fisheries
Management
Item ID: 9821
Depositing User: Patti M. Marraro
Date Deposited: 16 Aug 2012 14:24
Last Modified: 16 Aug 2012 14:24
URI: http://aquaticcommons.org/id/eprint/9821

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